2) K.H. Jaidbey, et al., “Photoprotection by melanin – a comparison of black and Caucasin skin”, Journal of the American Academy of Dermatology, 1979, 1(3), 249-260.
3) J.P. Ortonne, “Photoprotective properties of skin melanin”, British Journal of Dermatology, 2002, 146(s61), 7-10.